--- nono/host/netdriver_none.h	2026/04/29 17:04:28	1.1.1.1
+++ nono/host/netdriver_none.h	2026/04/29 17:04:34	1.1.1.2
@@ -1,6 +1,7 @@
 //
 // nono
-// Copyright (C) 2019 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
@@ -9,12 +10,12 @@
 
 class NetDriverNone : public NetDriver
 {
-	typedef NetDriver inherited;
+	using inherited = NetDriver;
  public:
 	NetDriverNone();
-	virtual ~NetDriverNone();
+	~NetDriverNone() override;
 
-	virtual bool Init();
-	virtual bool SendPacket(const std::vector<uint8>& data);
-	virtual void ThreadRun();
+	bool Init() override;
+	bool SendPacket(const std::vector<uint8>& data) override;
+	void ThreadRun() override;
 };